Growing community of inventors

Fairport, NY, United States of America

David E Hansen

Average Co-Inventor Count = 1.25

ph-index = 9

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 212

David E HansenWilliam H Valls (2 patents)David E HansenRobert J Blackman (2 patents)David E HansenJoel S Lawther (1 patent)David E HansenDana W Wolcott (1 patent)David E HansenBruce A Leonard (1 patent)David E HansenRichard R Kelbe (1 patent)David E HansenWolfgang Ort (1 patent)David E HansenDavid E Hansen (19 patents)William H VallsWilliam H Valls (34 patents)Robert J BlackmanRobert J Blackman (19 patents)Joel S LawtherJoel S Lawther (70 patents)Dana W WolcottDana W Wolcott (22 patents)Bruce A LeonardBruce A Leonard (21 patents)Richard R KelbeRichard R Kelbe (4 patents)Wolfgang OrtWolfgang Ort (4 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Eastman-kodak Company (19 from 21,594 patents)


19 patents:

1. 5303825 - Storage assemblage for index print sheets and cassettes

2. 5301803 - Package for index print sheet and cassette

3. 5271497 - Storage assemblage for index print sheets and cassettes

4. 5251747 - Storage assemblage for index print sheets and cassettes

5. 5111228 - Horizontal/vertical frame viewfinder

6. D311546 - Camera with integral flash unit

7. 4841319 - Apparatus for loading a film cassette into a camera

8. 4801960 - Mode selector member and finger recess in a camera

9. D296213 - Disk film camera

10. D296215 - Photographic camera

11. 4690531 - Low cost telephoto and normal lens camera with an extendable flash

12. D285087 - Camera with integral flash unit

13. D284973 - Camera with integral flash unit

14. D254791 - Photographic camera having an electronic flash unit

15. D250958 - Photographic camera or similar article

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as of
12/27/2025
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